// Remove the specified (or second) window from the view
// Doesn't actually delete the window.
bool wxSplitterWindow::Unsplit(wxWindow *toRemove)
{
if ( ! IsSplit() )
return false;
wxWindow *win;
if ( toRemove == NULL || toRemove == m_windowTwo)
{
win = m_windowTwo ;
m_windowTwo = NULL;
}
else if ( toRemove == m_windowOne )
{
win = m_windowOne ;
m_windowOne = m_windowTwo;
m_windowTwo = NULL;
}
else
{
wxFAIL_MSG(wxT("splitter: attempt to remove a non-existent window"));
return false;
}
OnUnsplit(win);
DoSetSashPosition(0);
SizeWindows();
return true;
}
// Associates the given window with window 2, drawing the appropriate sash
// and changing the split mode.
// Does nothing and returns false if the window is already split.
bool wxSplitterWindow::DoSplit(wxSplitMode mode,
wxWindow *window1, wxWindow *window2,
int sashPosition)
{
if ( IsSplit() )
return false;
wxCHECK_MSG( window1 && window2, false,
_T("can not split with NULL window(s)") );
wxCHECK_MSG( window1->GetParent() == this && window2->GetParent() == this, false,
_T("windows in the splitter should have it as parent!") );
if (! window1->IsShown())
window1->Show();
if (! window2->IsShown())
window2->Show();
m_splitMode = mode;
m_windowOne = window1;
m_windowTwo = window2;
// remember the sash position we want to set for later if we can't set it
// right now (e.g. because the window is too small)
m_requestedSashPosition = sashPosition;
m_checkRequestedSashPosition = false;
DoSetSashPosition(ConvertSashPosition(sashPosition));
SizeWindows();
return true;
}
// Remove the specified (or second) window from the view
// Doesn't actually delete the window.
bool wxSplitWindow::Unsplit(wxWindow *toRemove) {
if (!IsSplit() || toRemove == NULL) return false;
if (toRemove == m_windowOne) {
DoSetSashPosition (0);
}else if (toRemove == m_windowTwo) {
DoSetSashPosition (GetWindowSize());
}else{
wxFAIL_MSG(wxT("splitter: attempt to remove a non-existent window"));
return false;
}
OnUnsplit (toRemove);
SizeWindows();
return true;
}
void wxSplitWindow::SetSashPosition (int position, bool redraw) {
// remember the sash position we want to set for later if we can't set it
// right now (e.g. because the window is too small)
m_requestedSashPosition = position;
m_checkRequestedSashPosition = false;
DoSetSashPosition (ConvertSashPosition (position));
if (redraw) SizeWindows();
}
// Set pane for unsplit window
void wxSplitterWindow::Initialize(wxWindow *window)
{
wxASSERT_MSG( (!window || window->GetParent() == this),
wxT("windows in the splitter should have it as parent!") );
if (window && !window->IsShown())
window->Show();
m_windowOne = window;
m_windowTwo = NULL;
DoSetSashPosition(0);
}
void wxSplitterWindow::SetSashPositionAndNotify(int sashPos)
{
// we must reset the request here, otherwise the sash would be stuck at
// old position if the user attempted to move the sash after invalid
// (e.g. smaller than minsize) sash position was requested using
// SetSashPosition():
m_requestedSashPosition = INT_MAX;
// note that we must send the event in any case, i.e. even if the sash
// position hasn't changed and DoSetSashPosition() returns false because we
// must generate a CHANGED event at the end of resizing
DoSetSashPosition(sashPos);
wxSplitterEvent event(wxEVT_SPLITTER_SASH_POS_CHANGED, this);
event.m_data.pos = m_sashPosition;
(void)DoSendEvent(event);
}
// Position and size subwindows.
// Note that the border size applies to each subwindow, not
// including the edges next to the sash.
void wxSplitterWindow::SizeWindows()
{
// check if we have delayed setting the real sash position
if ( m_requestedSashPosition != INT_MAX )
{
int newSashPosition = ConvertSashPosition(m_requestedSashPosition);
if ( newSashPosition != m_sashPosition )
{
DoSetSashPosition(newSashPosition);
}
if ( newSashPosition <= m_sashPosition
&& newSashPosition >= m_sashPosition - GetBorderSize() )
{
// don't update it any more
m_requestedSashPosition = INT_MAX;
}
}
int w, h;
GetClientSize(&w, &h);
if ( GetWindow1() && !GetWindow2() )
{
GetWindow1()->SetSize(GetBorderSize(), GetBorderSize(),
w - 2*GetBorderSize(), h - 2*GetBorderSize());
}
else if ( GetWindow1() && GetWindow2() )
{
const int border = GetBorderSize(),
sash = GetSashSize();
int size1 = GetSashPosition() - border,
size2 = GetSashPosition() + sash;
int x2, y2, w1, h1, w2, h2;
if ( GetSplitMode() == wxSPLIT_VERTICAL )
{
w1 = size1;
w2 = w - 2*border - sash - w1;
if (w2 < 0)
w2 = 0;
h2 = h - 2*border;
if (h2 < 0)
h2 = 0;
h1 = h2;
x2 = size2;
y2 = border;
}
else // horz splitter
{
w2 = w - 2*border;
if (w2 < 0)
w2 = 0;
w1 = w2;
h1 = size1;
h2 = h - 2*border - sash - h1;
if (h2 < 0)
h2 = 0;
x2 = border;
y2 = size2;
}
GetWindow2()->SetSize(x2, y2, w2, h2);
GetWindow1()->SetSize(border, border, w1, h1);
}
wxClientDC dc(this);
DrawSash(dc);
}
void wxSplitterWindow::OnMouseEvent(wxMouseEvent& event)
{
int x = (int)event.GetX(),
y = (int)event.GetY();
if ( GetWindowStyle() & wxSP_NOSASH )
{
event.Skip();
return;
}
bool isLive = IsLive(this);
if (event.LeftDown())
{
if ( SashHitTest(x, y) )
{
// Start the drag now
m_dragMode = wxSPLIT_DRAG_DRAGGING;
// Capture mouse and set the cursor
CaptureMouse();
SetResizeCursor();
if ( !isLive )
{
// remember the initial sash position and draw the initial
// shadow sash
m_sashPositionCurrent = m_sashPosition;
m_oldX = (m_splitMode == wxSPLIT_VERTICAL ? m_sashPositionCurrent : x);
m_oldY = (m_splitMode != wxSPLIT_VERTICAL ? m_sashPositionCurrent : y);
DrawSashTracker(m_oldX, m_oldY);
}
m_ptStart = wxPoint(x,y);
m_sashStart = m_sashPosition;
return;
}
}
else if (event.LeftUp() && m_dragMode == wxSPLIT_DRAG_DRAGGING)
{
// We can stop dragging now and see what we've got.
m_dragMode = wxSPLIT_DRAG_NONE;
// Release mouse and unset the cursor
ReleaseMouse();
SetCursor(* wxSTANDARD_CURSOR);
// exit if unsplit after doubleclick
if ( !IsSplit() )
{
return;
}
// Erase old tracker
if ( !isLive )
{
DrawSashTracker(m_oldX, m_oldY);
}
// the position of the click doesn't exactly correspond to
// m_sashPosition, rather it changes it by the distance by which the
// mouse has moved
int diff = m_splitMode == wxSPLIT_VERTICAL ? x - m_ptStart.x : y - m_ptStart.y;
int posSashNew = OnSashPositionChanging(m_sashStart + diff);
if ( posSashNew == -1 )
{
// change not allowed
return;
}
if ( m_permitUnsplitAlways || m_minimumPaneSize == 0 )
{
// Deal with possible unsplit scenarios
if ( posSashNew == 0 )
{
// We remove the first window from the view
wxWindow *removedWindow = m_windowOne;
m_windowOne = m_windowTwo;
m_windowTwo = NULL;
OnUnsplit(removedWindow);
wxSplitterEvent eventUnsplit(wxEVT_SPLITTER_UNSPLIT, this);
eventUnsplit.m_data.win = removedWindow;
(void)DoSendEvent(eventUnsplit);
SetSashPositionAndNotify(0);
}
else if ( posSashNew == GetWindowSize() )
{
// We remove the second window from the view
wxWindow *removedWindow = m_windowTwo;
m_windowTwo = NULL;
OnUnsplit(removedWindow);
wxSplitterEvent eventUnsplit(wxEVT_SPLITTER_UNSPLIT, this);
eventUnsplit.m_data.win = removedWindow;
(void)DoSendEvent(eventUnsplit);
SetSashPositionAndNotify(0);
}
else
{
SetSashPositionAndNotify(posSashNew);
}
}
else
{
SetSashPositionAndNotify(posSashNew);
}
SizeWindows();
} // left up && dragging
else if ((event.Moving() || event.Leaving() || event.Entering()) && (m_dragMode == wxSPLIT_DRAG_NONE))
{
if ( event.Leaving() || !SashHitTest(x, y) )
OnLeaveSash();
else
OnEnterSash();
}
else if (event.Dragging() && (m_dragMode == wxSPLIT_DRAG_DRAGGING))
{
int diff = m_splitMode == wxSPLIT_VERTICAL ? x - m_ptStart.x : y - m_ptStart.y;
int posSashNew = OnSashPositionChanging(m_sashStart + diff);
if ( posSashNew == -1 )
{
// change not allowed
return;
}
if ( !isLive )
{
if ( posSashNew == m_sashPositionCurrent )
return;
m_sashPositionCurrent = posSashNew;
// Erase old tracker
DrawSashTracker(m_oldX, m_oldY);
m_oldX = (m_splitMode == wxSPLIT_VERTICAL ? m_sashPositionCurrent : x);
m_oldY = (m_splitMode != wxSPLIT_VERTICAL ? m_sashPositionCurrent : y);
#ifdef __WXMSW__
// As we captured the mouse, we may get the mouse events from outside
// our window - for example, negative values in x, y. This has a weird
// consequence under MSW where we use unsigned values sometimes and
// signed ones other times: the coordinates turn as big positive
// numbers and so the sash is drawn on the *right* side of the window
// instead of the left (or bottom instead of top). Correct this.
if ( (short)m_oldX < 0 )
m_oldX = 0;
if ( (short)m_oldY < 0 )
m_oldY = 0;
#endif // __WXMSW__
// Draw new one
DrawSashTracker(m_oldX, m_oldY);
}
else
{
if ( posSashNew == m_sashPosition )
return;
DoSetSashPosition(posSashNew);
// in live mode, the new position is the actual sash position, clear requested position!
m_requestedSashPosition = INT_MAX;
m_needUpdating = true;
}
}
else if ( event.LeftDClick() && m_windowTwo )
{
OnDoubleClickSash(x, y);
}
else
{
event.Skip();
}
}
void wxSplitterWindow::OnMouseEvent(wxMouseEvent& event)
{
int x = (int)event.GetX(),
y = (int)event.GetY();
if (GetWindowStyle() & wxSP_NOSASH)
return;
// with wxSP_LIVE_UPDATE style the splitter windows are always resized
// following the mouse movement while it drags the sash, without it we only
// draw the sash at the new position but only resize the windows when the
// dragging is finished
#if defined( __WXMAC__ ) && TARGET_API_MAC_OSX == 1
bool isLive = true ;
#else
bool isLive = (GetWindowStyleFlag() & wxSP_LIVE_UPDATE) != 0;
#endif
if (event.LeftDown())
{
if ( SashHitTest(x, y) )
{
// Start the drag now
m_dragMode = wxSPLIT_DRAG_DRAGGING;
// Capture mouse and set the cursor
CaptureMouse();
SetResizeCursor();
if ( !isLive )
{
// remember the initial sash position and draw the initial
// shadow sash
m_sashPositionCurrent = m_sashPosition;
DrawSashTracker(x, y);
}
m_oldX = x;
m_oldY = y;
SetResizeCursor();
return;
}
}
else if (event.LeftUp() && m_dragMode == wxSPLIT_DRAG_DRAGGING)
{
// We can stop dragging now and see what we've got.
m_dragMode = wxSPLIT_DRAG_NONE;
// Release mouse and unset the cursor
ReleaseMouse();
SetCursor(* wxSTANDARD_CURSOR);
// exit if unsplit after doubleclick
if ( !IsSplit() )
{
return;
}
// Erase old tracker
if ( !isLive )
{
DrawSashTracker(m_oldX, m_oldY);
}
// the position of the click doesn't exactly correspond to
// m_sashPosition, rather it changes it by the distance by which the
// mouse has moved
int diff = m_splitMode == wxSPLIT_VERTICAL ? x - m_oldX : y - m_oldY;
int posSashOld = isLive ? m_sashPosition : m_sashPositionCurrent;
int posSashNew = OnSashPositionChanging(posSashOld + diff);
if ( posSashNew == -1 )
{
// change not allowed
return;
}
if ( m_permitUnsplitAlways || m_minimumPaneSize == 0 )
{
// Deal with possible unsplit scenarios
if ( posSashNew == 0 )
{
// We remove the first window from the view
wxWindow *removedWindow = m_windowOne;
m_windowOne = m_windowTwo;
m_windowTwo = (wxWindow *) NULL;
OnUnsplit(removedWindow);
wxSplitterEvent event(wxEVT_COMMAND_SPLITTER_UNSPLIT, this);
event.m_data.win = removedWindow;
(void)DoSendEvent(event);
SetSashPositionAndNotify(0);
}
else if ( posSashNew == GetWindowSize() )
{
// We remove the second window from the view
wxWindow *removedWindow = m_windowTwo;
m_windowTwo = (wxWindow *) NULL;
OnUnsplit(removedWindow);
wxSplitterEvent event(wxEVT_COMMAND_SPLITTER_UNSPLIT, this);
event.m_data.win = removedWindow;
(void)DoSendEvent(event);
SetSashPositionAndNotify(0);
}
else
{
SetSashPositionAndNotify(posSashNew);
}
}
else
{
SetSashPositionAndNotify(posSashNew);
}
SizeWindows();
} // left up && dragging
else if ((event.Moving() || event.Leaving() || event.Entering()) && (m_dragMode == wxSPLIT_DRAG_NONE))
{
if ( event.Leaving() || !SashHitTest(x, y) )
OnLeaveSash();
else
OnEnterSash();
}
else if (event.Dragging() && (m_dragMode == wxSPLIT_DRAG_DRAGGING))
{
int diff = m_splitMode == wxSPLIT_VERTICAL ? x - m_oldX : y - m_oldY;
if ( !diff )
{
// nothing to do, mouse didn't really move far enough
return;
}
int posSashOld = isLive ? m_sashPosition : m_sashPositionCurrent;
int posSashNew = OnSashPositionChanging(posSashOld + diff);
if ( posSashNew == -1 )
{
// change not allowed
return;
}
if ( posSashNew == m_sashPosition )
return;
// Erase old tracker
if ( !isLive )
{
DrawSashTracker(m_oldX, m_oldY);
}
if (m_splitMode == wxSPLIT_VERTICAL)
x = posSashNew;
else
y = posSashNew;
// Remember old positions
m_oldX = x;
m_oldY = y;
#ifdef __WXMSW__
// As we captured the mouse, we may get the mouse events from outside
// our window - for example, negative values in x, y. This has a weird
// consequence under MSW where we use unsigned values sometimes and
// signed ones other times: the coordinates turn as big positive
// numbers and so the sash is drawn on the *right* side of the window
// instead of the left (or bottom instead of top). Correct this.
if ( (short)m_oldX < 0 )
m_oldX = 0;
if ( (short)m_oldY < 0 )
m_oldY = 0;
#endif // __WXMSW__
// Draw new one
if ( !isLive )
{
m_sashPositionCurrent = posSashNew;
DrawSashTracker(m_oldX, m_oldY);
}
else
{
DoSetSashPosition(posSashNew);
m_needUpdating = true;
}
}
else if ( event.LeftDClick() && m_windowTwo )
{
OnDoubleClickSash(x, y);
}
}
// Position and size subwindows.
// Note that the border size applies to each subwindow, not
// including the edges next to the sash.
void wxSplitWindow::SizeWindows()
{
// check if we have delayed setting the real sash position
if (m_checkRequestedSashPosition && m_requestedSashPosition != INT_MAX) {
int newSashPosition = ConvertSashPosition (m_requestedSashPosition);
if (newSashPosition != m_sashPosition) DoSetSashPosition (newSashPosition);
if (newSashPosition <= m_sashPosition &&
newSashPosition >= m_sashPosition - GetBorderSize()) {
// don't update it any more
m_requestedSashPosition = INT_MAX;
}
}
int w, h;
GetClientSize(&w, &h);
const int border = GetBorderSize();
const int sash = GetSashSize();
if (m_windowOne && m_windowTwo) {
int size = GetWindowSize();
int size1;
int size2;
if (m_sashPosition == 0) {
size1 = 0;
size2 = size - 2*border;
}else if (m_sashPosition > 0 && m_sashPosition < size) {
size1 = m_sashPosition - border;
size2 = size - m_sashPosition - sash - border;
}else{
size1 = size;
size2 = 0 - 2*border;
}
int x2, y2, w1, h1, w2, h2;
if (m_splitMode == wxSPLIT_VERTICAL) {
w1 = size1;
w2 = size2;
h1 = h - 2*border;
h2 = h1;
x2 = size - (size2 - border);
y2 = border;
}
else // horz splitwindow
{
w1 = w - 2*border;
w2 = w1;
h1 = size1;
h2 = size2;
x2 = border;
y2 = size - (size2 - border);
}
m_windowOne->SetSize (border, border, w1, h1);
m_windowTwo->SetSize (x2, y2, w2, h2);
}
wxClientDC dc(this);
DrawSash(dc);
SetNeedUpdating (false);
}
